Kaila Bond

Mathematics

26 December, 03:49

The table below gives beverage preferences for random samples of teens and adults.

teens adults total

coffee 50 200 250

tea 100 150 250

soft drinks 200 200 400

other 50 50 100

400 600 1000

We are asked to test for independence between age (i. e., adult and teen) and drink preferences. With a. 05 level of significance, the critical value for the test is?

a. 1.645

b. 7.815

c. 14.067

d. 15.507